/* ===== MARKETING SYSTEMS — Von Dela Cruz Portfolio ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #0B0F14;
  --card: #121821;
  --gold: #C9A227;
  --text: #F5F5F5;
  --text-secondary: #9CA3AF;
  --border: rgba(255,255,255,.08);
  --hover: rgba(255,255,255,.05);
  --max: 1100px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-block;
  margin-bottom: 16px;
}

.section {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 16px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 17px;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: rgba(11,15,20,0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.nav-logo span { color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 500;
  transition: border-color .2s, background .2s;
}
.nav-cta:hover { border-color: var(--gold); background: var(--hover); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--text);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%; right: -10%;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(201,162,39,0.10) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  max-width: 900px;
  margin-bottom: 24px;
}
.hero h1 .gold { color: var(--gold); }

.hero-sub {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
  padding: 14px 26px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity .2s, border-color .2s, background .2s;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--gold);
  color: #0B0F14;
}
.btn-primary:hover { opacity: .88; }

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--gold); }

.hero-meta {
  margin-top: 64px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-meta-item { border-left: 2px solid var(--gold); padding-left: 14px; }
.hero-meta-num { font-family: 'Space Grotesk', sans-serif; font-size: 26px; }
.hero-meta-label { font-size: 13px; color: var(--text-secondary); }

/* ===== PHILOSOPHY ===== */
.philosophy {
  background: var(--card);
}
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.philosophy-lead {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.35;
}
.philosophy-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.philosophy-list-item {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 15px;
}
.philosophy-list-item span:first-child {
  color: var(--gold);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
}

/* ===== SYSTEMS (PROJECTS) ===== */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.system-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color .25s, transform .25s;
}
.system-card:hover {
  border-color: rgba(201,162,39,0.4);
  transform: translateY(-3px);
}

.system-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

.system-category {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.system-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.system-desc {
  color: var(--text-secondary);
  font-size: 14.5px;
  margin-bottom: 20px;
}

.system-block-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 6px;
  margin-top: 16px;
}
.system-block-text {
  font-size: 14px;
  color: var(--text);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tag {
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 5px 12px;
  color: var(--text-secondary);
}

.system-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 14px;
  color: var(--gold);
  font-weight: 500;
}
.system-link svg { width: 14px; height: 14px; }

.system-visual {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, rgba(201,162,39,0.12), rgba(255,255,255,0.02));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  margin-bottom: 22px;
}
.system-visual img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.system-visual svg {
  width: 30px; height: 30px;
  stroke: var(--gold);
  opacity: 0.85;
}
.system-card.featured .system-visual { margin-bottom: 0; }

/* ===== CAROUSEL ===== */
.carousel {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
  background: var(--card);
}
.carousel-track {
  display: flex;
  height: 100%;
  transition: transform .35s ease;
}
.carousel-slide {
  flex: 0 0 100%;
  height: 100%;
}
.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(11,15,20,0.72);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, border-color .2s;
}
.carousel-btn:hover { background: var(--gold); color: #0B0F14; border-color: var(--gold); }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }
.carousel.single-slide .carousel-btn,
.carousel.single-slide .carousel-dots { display: none; }
.carousel-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}
.carousel-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.carousel-dot.active { background: var(--gold); transform: scale(1.35); }

/* ===== EVIDENCE BLOCK ===== */
.evidence-block {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}
.evidence-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.evidence-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.evidence-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.evidence-grid li {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-secondary);
  padding-left: 13px;
  position: relative;
}
.evidence-grid li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
}
.evidence-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== MARKETING OPS FRAMEWORK ===== */
.opsframework-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  margin-top: 20px;
}
.opsflow {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0;
  margin-top: 28px;
}
.opsflow-stage {
  flex: 1;
  min-width: 130px;
  padding: 0 14px;
}
.opsflow-num {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-size: 12px;
  margin-bottom: 8px;
}
.opsflow-stage h4 { font-size: 14px; margin-bottom: 10px; }
.opsflow-stage ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.opsflow-stage li { font-size: 12.5px; color: var(--text-secondary); }
.opsflow-arrow {
  display: flex;
  align-items: center;
  padding-top: 24px;
  color: var(--gold);
  font-size: 16px;
  flex-shrink: 0;
}

/* ===== CAPABILITIES ===== */
.own-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.own-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px;
  transition: border-color .2s;
}
.own-item:hover { border-color: rgba(201,162,39,0.35); }
.own-item h4 { font-size: 15.5px; margin-bottom: 8px; }
.own-item p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.6; }

/* ===== HOW I THINK ===== */
.think-flow {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.think-step {
  flex: 1;
  min-width: 130px;
  text-align: center;
  padding: 24px 12px;
  position: relative;
}
.think-step-num {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-size: 13px;
  margin-bottom: 10px;
}
.think-step h4 { font-size: 15px; margin-bottom: 6px; }
.think-step p { font-size: 12.5px; color: var(--text-secondary); }
.think-step-example {
  margin-top: 10px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--subtle, var(--text-secondary));
  opacity: 0.8;
  font-style: italic;
}

/* ===== TOOLS & SYSTEMS ===== */
.tools-grid {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.tools-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.tools-col p {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}
.about-photo {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.about-copy p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 18px;
}
.about-copy strong { color: var(--text); font-weight: 600; }

/* ===== VIDEO EMBED ===== */
.video-embed {
  position: relative;
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 20px;
  background: var(--card);
  cursor: pointer;
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-embed img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity .2s;
}
.video-embed:hover img { opacity: .85; }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 76px; height: 76px;
  border-radius: 50%;
  background: rgba(11,15,20,0.75);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.video-embed:hover .video-play-btn {
  background: var(--gold);
  transform: translate(-50%, -50%) scale(1.06);
}
.video-play-btn svg {
  width: 28px; height: 28px;
  color: var(--text);
  margin-left: 4px;
}
.video-embed:hover .video-play-btn svg { color: #0B0F14; }

/* ===== TIMELINE ===== */
.timeline {
  border-top: 1px solid var(--border);
  margin-top: 56px;
  padding-top: 56px;
}
.timeline-row {
  display: grid;
  grid-template-columns: 90px 24px 1fr;
  gap: 0;
}
.timeline-item {
  display: contents;
}
.timeline-year {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-size: 14px;
  padding: 20px 0;
}
.timeline-dot-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.timeline-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: 26px;
  flex-shrink: 0;
}
.timeline-line {
  width: 1px;
  flex: 1;
  background: var(--border);
}
.timeline-content {
  padding: 20px 0 20px 20px;
  border-bottom: 1px solid var(--border);
}
.timeline-content h4 { font-size: 16px; margin-bottom: 4px; }
.timeline-content p { font-size: 14px; color: var(--text-secondary); }
.timeline-row:last-child .timeline-content { border-bottom: none; }

/* ===== PUBLISHED WORK ===== */
.published-work {
  margin-top: 64px;
  padding-top: 64px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: center;
}
.published-cover {
  display: block;
  width: 200px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  padding: 0;
  background: none;
  cursor: pointer;
  transition: border-color .2s, transform .2s;
}
.published-cover:hover { border-color: var(--gold); transform: translateY(-3px); }
.published-cover img { width: 100%; display: block; }

/* ===== TESTIMONIAL ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  align-items: start;
}

.testimonial-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 20px;
}
.testimonial-quote {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.5;
  margin-bottom: 20px;
}
.testimonial-author { font-size: 14px; color: var(--text-secondary); }
.testimonial-author strong { color: var(--text); }
.testimonial-shot {
  width: 100%;
  align-self: flex-start;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 10px;
  background: var(--bg);
  cursor: zoom-in;
  transition: border-color .2s, transform .2s;
}
.testimonial-shot img {
  width: 100%;
  border-radius: 6px;
}
.testimonial-shot:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

/* ===== LIGHTBOX ===== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.88);
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: min(600px, 90vw);
  max-height: 90vh;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  cursor: default;
}
.lightbox-close {
  position: absolute;
  top: 24px; right: 28px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  transition: border-color .2s;
}
.lightbox-close:hover { border-color: var(--gold); }

/* ===== FOOTER / CTA ===== */
.footer-cta {
  padding: 140px 0 80px;
  text-align: center;
}
.footer-cta h2 {
  font-size: clamp(32px, 5vw, 52px);
  margin-bottom: 18px;
}
.footer-cta p {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 520px;
  margin: 0 auto 40px;
}
.footer-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

footer.site-footer {
  padding: 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer-logo { font-family: 'Space Grotesk', sans-serif; color: var(--text-secondary); font-size: 14px; }
.site-footer-links { display: flex; gap: 24px; font-size: 13px; color: var(--text-secondary); }
.site-footer-links a:hover { color: var(--text); }

/* ===== REVEAL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: rgba(11,15,20,0.98);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .published-work { grid-template-columns: 1fr; text-align: center; }
  .published-cover { margin: 0 auto; }
  .systems-grid { grid-template-columns: 1fr; }
  .system-card.featured { grid-template-columns: 1fr; }
  .own-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { width: 160px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .testimonial-card { text-align: center; align-items: center; }
  .testimonial-shot { margin: 0 auto; }
  .think-flow { flex-direction: column; }
  .section { padding: 80px 0; }
  .evidence-grid { grid-template-columns: 1fr; gap: 16px; }
  .opsflow { flex-direction: column; gap: 20px; }
  .opsflow-arrow { transform: rotate(90deg); padding: 0; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .own-grid { grid-template-columns: 1fr; }
  .timeline-row { grid-template-columns: 70px 20px 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
}